Machine for making expanded metal.



Mm L 1 LA I u P Mm B x N E G. nn. F m n whn r m, m um um m5 M M N, 1H l ll r im n n wma n WM n .m .ww

PanamaA nec. |a,|9oo.

G. A'. TURNBULL.. MACHINE 'FOR MAKING EXPANDED `METAL.

' (Anuncian-mea .mi 2s, 1900.

(No Model.)

'6 Sheets-Sheet 2.

HII

G. A. TURNBULL MACHINE FR MAKING EXPANDED METAL.

' (A mation nledJ 23,1900.)

1 q y W i www c) m @I N oi 664,133. Patented Dec. I8, |900.

G. A. TURNBUL'L.

MACIHNE FOR MAKING EXPANDED METAL. (Appxicmoxf mea July 2a, 1900) (Nq Model.) l 8 Sheets-Shed 4 m. fiamme.. rammed Dec. la', "1900;

a. A. TuNBuLL. I Y MABHINE FOR MAKING EXPANDED-METAL. y

` (Application me@ .my 2s, '1soo.)'

. u sheets-sheet s.

sm N

(No Model.)

GEORGE A. TURNBULL,

OF CHICAGO, ILLINOIS.

IVIACHYINEV FAOR MAKING EXPANDED METAL.

SPECIFICATION :forming part of Letters Patent No. 664,193, dated December 18, 1900.

` Application led July Z3, 1900. Serial No. 24,492. Lllo model.)

To all whom, it muy concern:

Beit known that LGnoRGn A. TURNBULL, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Rolling Expanded Metal; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which vform a part of this specification.

This invention relates to rolling-machines of that class designed to roll or form expanded metal and more particularly designed to be used in the manufacture of expanded metal lath or the like. Heretofore the manufacture of laths of this kind has been comparatively expensive owing to the fact that it has been thought that the same could not be readily manufactured by rolling owing to the difficulty found in expanding the metal laterally to the required extent and with the required preeision. Myinvention contemplates a construction whereby a sheet of metal may be readily formed and expanded,'as herein shown, to double its original width to forni metallic lath of any desired kind. As herein shown and described, however, thesaid maj chine is more particularly designed and adjusted for rolling and expanding the lath shown and described in' the patent to me issued January 23, 1900, numbered 642,056, and in the patent to Brightman of the same classissued June 12, 1900, numbered 651,590.

The invention consists of the matters hereinafter described, and mo're fullypoin'ted out and defined in the appended claiins.

In the drawings, Figurel is a fragmentary top plan View of a machine embodying my invention. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a side eleva tion of the same. Fig. 4 is afragmentarydetail section of the first expanding-roll. Fig. 5 is a fragmentary longitudinal section of one of the succeeding expanding-rolls. Fig. is a fragmentary top plan View of a ma'- chine embodying myinvention and designed to expand the metal from one side of the same. Fig. 7 is an enlarged section, partly broken, taken on line7 7of Fig. 2. Fig. 8 is a fragmentarydetail of the same, illustratinga y construction of the cutting-rolls.

I Fig. 9 is a fragmentary section taken on line 9 9 of Fig. 2, illustrating the operation of the formingrolls.V Fig. 10 is a fragmentary detail of one of said forming-rolls, showing the Vs thereon over which the metal is bent or folded. Fig. 11 is a detail of one of the expanding-rolls, illustrating one forinof the expanding point-s or pins. Fig. 12 is a view of a fragment of a sheet of metal, showing the samein apartlyfinished condition and illustrating the operation of a machine expanding from the center. Fig. 13 is a similar View showing the metal slit and partly formed for expansion. Fig. 14 is a fragmentary View of one form of the iinished product, showing the expansion complete. Fig. l5 is a fragmentary longitudinal section of my machine adjusted to roll and expand metallic lath similar to that shown in the Brightman patent aforesaid. Fig. 16 is a fragmentary detail of the expanding-rolls. Fig. 17 is a fragmentary section taken on line 17 17 of Fig. 15. Fig. 18 is a section similar to Fig. 17 and taken between axial centers at the next succeeding stage in the revolution of said roll. Fig. 19 illustrates the mode of operation of the first pair of expanding-rolls. Fig. 20 is a View of the Brightman form of metal lath.v

As shown in the said drawings, the said machine comprises a frame having journaled therein one or more pairs of cutting or slitling rolls, (indicated by B and B', respectively,) forming-rolls C and C', adapted to take the metal from the slitting-rolls and to form the same preparatory to expanding, and a plurality of upper and lower expandingrolls, (indicated by D D D2 D5. D4 D5, dro.,

of which the letters with the even exponents indicate the upper roll and the letters with the odd exponents indicate the'lower roll.) Said rolls are'driven by a train of gears from a single source of power, as clearly shown in Figs. 1, 3, and 6. Referring more partienlarly to features of construction, said frame comprises upper horizontal members A and A', lower sills A2, and uprights or legs connected with the same and indicated, respectively, by a a a?, dac. Said frame may be constructed of any desired material, but pref-` erably will be constructed of metal and of sufficient Weight and rigidity to afford a rigid IOO bearing-surface for the mechanism it is designed to support. Journaled centrally at the feed end of said frame are cutting-rolls B and B', herein shown as two in number. One of said rolls, (the upper,) as shown, is provided with a plurality of knives set staggering on its periphery and a sufficient distance apart to form cuts a desired distance apart in a sheet of metal when passed between said rolls. As herein shown, said knives are set one-eighth of an inch apart on said rolls and are adjusted to overlap each other and to form cuts similar to those in the part marked x in Fig. 13. Obviously said knives may be secured to the periphery of said cutting-roll in any desired or familiar manner. 1f preferred, part of said knives may be secured on one roll and part of the same secured on the other, thus permitting said knives to cut the sheet from both sides. For convenience in illustration, however, I have shown all of said knives on one roll and have shown the lower roll Blas provided with coacting surfaces complemental to said knives. The cutting-roll B, as shown, is made in sections and comprises a mandrel or shaft b, provided with a fixed key b', extending the greater part of its length and having rigidly secured at one ofits ends a collar b2, against which and secured from rotation on the shaft by means of said key are secured alternately the rings b3, having a thickness equal to the desired width between the cuts,

and knife-plates b4. Said knife-plates, as shown, are circular and each provided on its periphery with a plurality of cutters b5, as shown in Fig. 2. The cutters of alternate knife-plates are so arranged as to be staggering on the roll when in operative position. A collar b", similar to the collar b2, and a jam-nut 197 are provided, having screwthreaded engagement with the shaft and adapted to clamp said rings and cutter-plates together. The lower roll B, as shown, is cast solid, but-,if preferred, may be constructed in a manner similar to the roll B, in which event the plate and rings will be so proportioned relatively as to provide a plurality of peripheral grooves complemental to said knives and having sharp edges adapted to coact with said knives in cutting the sheet.

The forming-rolls O C', respectively, are located one above the other and are preferably of equal size with the cutting-rolls B and B and similarly journaled in the frame adjacent to the same and adapted to receive the cut metal therefrom and form the same, as indicated at 0:' in Fig. 13, in which, as shown, the adjacent edges on each side of each cut in the metal are forced downwardly, while the connecting metal between the same is supported to form a ridge in the form of an inverted V. The rolls may be constructed solid, and one of the same, as shown in Figs. 2, 9, and 10, (the lower,) is provided on its periphery with forming-dies O3, shaped like inverted Vs and equally spaced about the same and adjusted on the roll staggering and a distance between centers equal to the width of the webs between the cuts in the sheet. The other roll, O, is provided on its periphery with a plurality of punches arranged complementally with said Vs and adapted to mesh between the same. Said rolls O and Oare so adjusted with respect to the cutting-rolls and to each other that when the cut sheet is fed between said forming-rolls the points c3 ci engage centrally on the eut edges of the webs, while the central portion of said web is supported on the Vs O2 C2, as shown in Fig. 9, with the result that said punches, with the continued rotation of said rolls, act to force the said cnt edges downwardly while the central portion of said web is sustained, with the effect of forming the metal, as illustrated in said Fig. 9 and the part marked in Fig. 13. Obviously from the construction described the cut edges are all forced in one direction, either downwardly or upwardly, depending upon which roller is provided with the punches and which with the Vs. If preferred, said Vs and punches may be placed alternately on both the upper and the lower rolls and arranged to mesh, as shown in Figs. 17 and 18. In this construction the webbed edges of alternate cuts are forced oppositely, with the effect of forming the sheet to make the Brightman lath. Such an adjustment isillustratcd in Figs. 15, 17, and 18, in which C2 C3 indicate, respectively, the upper and lower forming-rolls, which are each, as shown, constructed of a series of plates or sections each provided alternately on its periphery with forming Vs or dies and with forming-punches, and said plates are adjusted with respect to eachother so that said forming Vs or dies and punches of one roll mesh between the punches and dies of the other. essential that either of said rolls he constructed in section, inasmuch as the Vs and punches may be formed on the face or may be separate and secured in any desired manner to a solid roll. Neither is it essential that but one pair of forming-rolls be employed, for obviously, if desired, two or more pairs of such rolls maybe journaled side by side and adapted to form the sheet in any desired man ner preparatory to expanding the same.

The expanding-rolls, as shown, are of less diameter than the cutting and forming rolls, but are geared to have the same peripheral speed as said rolls, being therefore adapted to operate on the sheet of metal while the cutting and forming rolls are also operating upon it. Figs. 1, 2, and 6 are views of the machine set or adjusted to expand the metal, as illustrated in Fig. 14, or, in other words, to expand metal in that form in which the Vs of the sheet are all similarly directed.

Referring tirst to the machine illustra-ted in Fig. 1, it is designed to expand the sheet laterally from the center of the same and to engage the sheet centrally in each of the een- IOO Obviously it is not IIO tral lines of vspaces or pockets marked Q02 on Fig. 13 and to expand the sheet laterally from the center by forcing the Vs of the sheet opposite to the same outwardly. As shown, the pins are of the width of the desired'spaceM that is to say, approximately one-fourth of an inch. The lower roll D' is provided with a groove or with sockets com plemental to the pins on the upper roll and adapted to receive the ends of the same. The roll D2 or the succeeding expanding-rolls are preferably provided with pins d d, corresponding to the similar pins on the roller D andadapted to act as guides for the metal during the expanding operation. Said roll D2 is also provided on each side of said guide-pin with the pins d' d2 d3 d4, of which the pins dd2 are on the right side of the roll, while the pins d3 d4 are on the left side of the saine. Said pins are similar to the pins d, except that the points of the same adjacent to the said pins d are nearly straight, while the points on the side opposite are inclined outwardly, as shown in Fig. 1, thereby acting to push the outer web later'- ally. The lower roll D3 is provided with circumferential grooves or with sockets adapted to receive the points of said pins when engaging the metal sheet and serves t0 support the sheet during the expansion. The next succeeding roll D4 is provided with central guide-pins d, as described, and on eachside of the same with two rows of guide-pins d5 d6 Z7 d2, which are set at a distance one-fourth of an inch between centers from the next preceding and succeeding rows of pins and operate in a manner similar to that already described. The succeeding top rolls are like- Wise provided with central guide-pinsel, and on each side of the same at one-fourth-inch centers from the preceding ones are provided .expanding-pins similar to those heretofore described. The operation of this form of my device is as follows: A sheet of metal of desired width-say seven and one-half inches-- and a desired length being fed into the cutting-roll, the same is slit, asillustrated in Fig. 13, and formed by. the forming-rolls, as illustrated by the part marked in said Fig. 13. As the front end of said strip passes from the forming-roll it is engaged between the rolls D D', which, however, of themselves exert no pressure thereon, and the pins d CZ enter the central line of slots or pockets marked m2 in Said Fig. 13 and dilate or expand the metal laterally till said slot or pocket is of the desired width. Said lateral expansion acts to open the next succeeding slot or pocket sufficiently to permit engagement with the next succeeding lateral pins d d3 on each side of said central slot, with the effect of expanding the same laterally. 1nasinnch,however,as the slope of said pin is mostly on the outer side of the same, expansion of said metal will be wholly outward, with the effect of partially expanding the slots or pockets beyond the same and permitting the engagement therein of the pins d2 d3 to operate as before described. Each succeeding pair of rolls likewise expands on each side of the sheet two of the slots until the operation is complete. The amount of the expansion depends upon the size and the set of the pins and the distance apart of the slits or cuts in the metal. As herein shown, said cuts are one-eighth of an inch apart, and the metal being designed for use as lath the expansion in each slot is one-eighth of an inch. It follows that the sheet when the operation is complete is expanded to double its original width, or if originally seven and one-half inches to fifteen inches.

Obviously, if preferred, the machine may be set to expand wholly from one side of the sheet, and such a construction is .illustrated in Fig. 6, in which the rollers B B C C' are set to run close to the frame member A'. Rolls D D2 D4, dac., are each provided with two rows of expanding-pins arranged staggering, as before described, and of which the pins e e' are set close to the end of the roller D. Said pins engage the first and second of the slots or pockets in the sheet and expand the webs toward the opposite end of the roll. The last row of said pins serves to partly open the next pocket or slot to receive the pins e2 e3 of the roll D2, upon which and the succeed-v ing corresponding rolls there are also two rows of pins, as before described. With this arrangement a great-er number of expandingrolls are required than when adjusted to expand the metal from the center. Said expanding-pins, as shown, are interchangeable and obviously may be set in the upper or the lower rolls, as preferred, or when the forming-rolls are set to form the Vs oppositely, as illustrated in Fig. 15, the expanding-rolls will be adjusted with pins alternating first on the upper and then on the lower rolls, as illustrated in Figs. 15, 16, and 19, in which case the pins d d are inserted, as heretofore described, in the roll D, and the roll D is provided with sockets com plemental thereto, as before described. The roll D3 is provided with expanding-pins adapted to be inserted upwardly in the sheet and set at one-fourth-inch lcenters laterally on each side of the pins d.' The roll D2 is provided with pins d, which after the first roll act as guide-pins. On the lower roll D3 on each side of the center is a row of pins ff', respectively, which operate similarly to those already described and are set with one-fourth of an inch between centers laterally of said pins d. On each side of the pins d on the roll D2 is provided a row of pins d2 d4, respectively, set at one-fourth-inch centers laterally from pins fj" on the lower roll D3. In the same manner each set of rolls is provided with a row of expanding-pins on each side of the center on each roll, of which the ones on the lower roll are set over onefourth of an inch laterally from the pins on the preceding upper roll, and the pins on the upper roll are set over l[he same distance laterally of the pins on the corresponding lower IOO IIO

roll. Obviously, however, if preferred, the arrangement of pins on the upper and lower rolls may be reversed and those on the upper be arranged to operate the first. A convenient manner of securing said pins in said rolls and to render the same adjustable as to height and direction of inclination is to screw-thread the inner ends of the pins and provide screwthreaded apertures at the desired points on the rolls adapted to receive the same. If both rolls of a set are provided with corresponding apertures, obviously the apertures of one will serve as sockets for the pins of the other, as shown in Figs. l5 and 19.

The operation of the machine when adjusted as above described is essentially similar to the operation before described, with the exception that as the sheet passes from the forming-roll the pockets are oppositely faced on each side of the sheet and the Vs alternately open on the upper and lower sides of the same. The pins (Z engage the slots or pockets indicated by y, Fig. 20, expanding the same to the position therein shown, and the next succeeding pins ff" on the lower roll D3 engage the sheet in the next succeeding slot y on each side of the slot y and expand the same from below, while the pins (Z2 d4 engage said sheet from above in the slots 1/2 y2. This operation is repeated progressively on each side of the central line of said sheet until the same leaves the lnachine expanded to the desired extent.

ylhe rolls may be geared in anydesired manner and may be provided at thejournal-boxes with any desired means for adjusting the same longitudinally of the machine. Fig. 3 illustrates one way of driving said rolls with equal peripheral speed. As shown, H indicates the main driving-shaft, provided with a driving-pulley hin a familiar manner and with a pinion h', meshing on opposite sides with the gears h2 h3, which are respectively secured each on the ends of the shafts for the rolls B and C. Similar gears h1 h5 are secured on the corresponding ends of the shafts for the rolls B and C and intermesh with the gears h2 h3, thereby acting to drive corresponding rolls in the same direction and the upper and lower roll of each pair oppositely. A gear h6 is secured concentric with the gear h3, which intermeshes with a transmittinggear LT, secured on the side of the frame in position to intel-mesh with the gear hs on the shaft for roll D', which in turn intermeshes with a gear 71,9 on the roll D. Each succeeding pair of rolls is provided with inter-meshing gears in like manner, and between the lower gears of each pair is an intermeshing transmitting-gear hw. Said gears are so proportioned that the peripheral speed of all the rolls is the same. As a furtherimprovement I provide a transverse bar G, supported on said frame and provided with teeth or fingers extending between the knives on the cuttingrolls and adapted to strip the metal sheet therefrom. Said bar may be constructed in any desired manner. Preferably, however,its frontedgeis relatively thin and provided with a plurality of slits adapted to permit the passage of the knives therethrough and engaging with its front end the surface of said roll between said knives.

Obviously many of the details of construction illustrated and above described are not essential to the carrying out of the broad features of my invention when separately considered. The scope of the invention will be set forth in the concluding claims, and it is to be understood'that the omission of an elel ment or the omission of any particular feature of any of the elements mentioned in any given claim is intended as a formal declaration that the omitted elements or features are not essential to theinvention therein covered.

I claim as my inventionl. The combination with cutting-rolls and forming-rolls, of expanding-rolls provided with means for engaging a sheet of metal received from the forming-rolls and acting to force the same laterally.

2. The combination with cutting-rolls, of forming-rolls, of a plurality of pairs of rolls adapted to receive a sheet of metal or the like from the forming-rolls and provided with means acting to expand said sheet uniformly and laterally to a desired width.

The combination with cutting-rolls, of forming-rolls provided on their peripheries with coacting dies and punches, and expanding-rolls adapted to receive a sheet of metal or the like from said forming-rolls and provided with means adaptedl to expand said sheet laterally.

et. The combination with cutting rolls adapted to slit a sheet of metal longitudinally, of forming-rolls provided with parts adapted to engage the slit edges of said metal and bend the same ont of the plane thereof, and a plurality of expanding-rolls between which said sheet is passed, said expanding-rolls being provided with means adapted to engage said sheet of metal in said slits and acting to expand the sheet laterally.

5. The combination with cuttingrolls adjusted to slit a sheet of metal longitudinally, of forming-rolls, eoacting dies on the peripheries thereof adapted to bend the slit edges of said metal out of the plane thereof, and a plurality of expandingrolls between which said sheet is passed, said expanding-rolls being provided with means adapted to engage said sheet of metal in the slits and acting to expand the sheet laterally.

6. The combination with cutting-rolls and forming-rolls, of a plurality of expandingrolls adapted to receive a sheet of metal therefrom, said expanding-rolls being provided peripherally with projections adapted to engage the cut edges of said sheet of metal and acting to force the same laterally.

7. The combination with cutting-rolls and forming-rolls, of a plurality of expandingrolls adapted to receive a sheet of metal there- IOO IIO

from, said expanding` rolls being provided peripherally with [')rojections set staggering With respect to each other and adapted to engage the cut edges of said sheet of metal and acting to force the same laterally.

8. The combination with cutting-rolls andforming-rolls, o1 a ,plurality of expandingrolls adapted to receive a sheet of metal therefrom, said expanding-rolls being arranged in pairs and one roll of each pair being provided peripherally with projections adjusted to engage the out edges of a sheet ot' metal and acting to force the same laterally.

9. The combination with cutting-rollsand forming-rolls, of a plurality of pairs of expanding-rolls adapted to receive a sheet of metal from said forming-rolls, one roll of each of said pairs ofv expanding-rolls being provided peripherally with radial projections set staggering and adjusted to engage in slits in said sheet of metal and acting to expand said sheet laterally of said rolls.

10. The combination with cutting-rolls adjusted to cnt a plurality of slits in a sheet of metal or the like, of forming-rolls, peripheral coacting dies and punches on said forming-rolls, a plurality of pairs of expandingrolls adapted to receive the sheet of metal from the forming-rolls, one roll of each pair being provided peripherally with projections adapted to engage slits in said sheet of metal and acting to force the saine laterally.

11. The combination with cutting-rolls, of forming-rolls, coacting dies and punches on the peripheries of the same, a plurality of pairs of expanding-rolls adapted toreceive a sheet of metal from the forming-rolls, correspondingrolls of each pair of expanding-rolls being provided peripherally with radial projections adapted to engage in slits in said sheet of metal and acting to expand the same laterally.

l2. The combination with cutting-rolls, of forming-rolls having on their peripheries coacting dies andpunches, a plurality of pairs of expanding-rolls adapted to receivea sheet of metal from said forming-rolls, one roll of each pair of expanding-rolls being provided peripherally with radial projections having outwardly-beveledpoints and adj usted to engage in slits in said sheet of metal.

13. The combination with a' plurality of cutting-rolls provided with knives set staggering with each other and adapted to form a plurality of relatively-short parallel overlapping slits in a sheet of metal or the like, of a plurality of forming-rolls adapted to engage the metal between said slits and form alternate V-shaped ridges and open slots or pockets, and a plurality of pairs of expanding-rolls adapted to receive the said sheet from said forming-rolls and means carried by each pair of expanding-rolls adapted to engage said sheet in alternate slots or pockets and acting to torce the Vs laterally.

14. The combination with a plurality of Cutting-rolls adapted to form a plurality of relatively short parallel overlapping slits in a sheet of metal or the like, of a plurality of forming-rolls provided peripherally with coacting surfaces adapted to forrnsaid sheet between said slits into alternate ridges and open slots or pockets, a plurality ot' pairs of eX- panding-rolls adapted to receive the sheet therefrom and means carried by one of each pai r of expanding-rolls adapted to engage said sheet in alternate slots or pockets and acting to force the said ridges laterally.

15. The combination with cutting-rolls adapted to form a plurality of short parallel overlapping slits in a sheet of metal or the like, of a plurality of forming-rolls provided with enacting surfaces adapted to force the cut edges in said slits out of the plane of the sheet, thereby forming open slots or pockets, a plurality of pairs of expanding-rolls adapted to receive said sheet from the forming-rolls and provided with projections having outwardlyinclined points adjusted to engage said sheet successively in said slots or pockets and acting to expand the sheet laterally.

16. The combination with a plurality of rolls provided with knives adapted to cut a sheet of metal in relatively short overlapping parallel slits, a plurality of forming-rolls provided with coacting dies and punches adapted to form V-shaped ridges between saidslits and slots or pockets between said ridges, and a plurality of pairs of expanding-rolls provided with means for engaging said sheet in alternate slots or pockets and acting to expand said sheet laterally.

17. The combination with cuttingrolls adapted to cutasheet of metal into a plurality of relatively short parallel overlapping slits a desired distance apart, of a plurality of forming-rolls adapted to receive the metal from the cutting-rolls and provided with coacting dies adapted to form in said sheet between said slits a plurality of V-shaped ridges alternating with slots or pockets, a pair of eX- panding-rolls provided on the periphery with pins arranged staggering to correspond with the pockets of slots in said sheet, adapted to engage said sheet successively in said slots or pockets, and acting to expand said sheet laterally.

18. The combination with cutting rolls adapted to slit a sheet of metal into a plurality of relatively short parallel overlapping slits a desired distance apart, of a plurality of forming-rolls adapted to receive the metal from the cutting-rolls and provided with coact-ing dies adapted to forni said sheet between said slits into a plurality of ridges alternating with slots or pockets and a plurality of pairs of expanding-rolls provided on their periphery with pins arranged staggering to correspond with the pockets or slotsin said sheet and adjusted to successively engage in the same and acting to expand said sheet laterally.

19. The combination with cutting rolls adapted to slit a sheet of metal intoa plural- IIO ity of relatively short parallel overlapping slits a desired distance apart, of a plurality7 of forming-rolls adapted to receive the metal from the cutting-rolls and provided with coacting dies adapted to form in said sheet a plurality of V-shaped ridges alternating with slots or pockets, a plurality of pairs of expanding-rolls provided on their periphery with pins arranged staggering havinginclined points and adjusted to engage said sheetsuccessively in said slots or pockets and acting to expand the sheet laterally.

20. The combination with cutting and forming rolls, of a plurality of expanding-rolls adapted to receive asheetof metaltheretrom, said expanding-rolls having the same peripheral speed as the cutting and forming rolls and provided with means for expanding the cut and formed sheet of metal laterally.

2l. The combination with cuttingand forming rolls, of a plurality of expanding-rolls arranged in pairs and adapted to receive a sheet of metal therefrom, corresponding rolls thereon each provided with one or more rows of pins in corresponding rolls in each pair, said pins being arranged peripherally staggering with respect. to the pins on the same roll and succeeding roll.

22. The combination with cuttingand forming rolls, ot' a plurality of expanding-rolls adapted to receive a sheet of metal therefrom, said expanding-rolls being arranged in pairs, and corresponding rolls of each pair being provided peripherally with adjustable pins arranged staggering with the pins on the same roll and the succeeding rolls, the other roll in each pair being provided with sockets adapted to receive the points of said pins.

23. rThe combination with cutting and forming rolls, of a plurality of expandingrolls adapted to receive a sheet of metal therefrom, said expanding-rolls beingarranged in pairs, the corresponding rolls ot' each pair being provided with interchangeable pins having outwardlyinclined points and arranged peripherally in rows on said rolls, each of said rolls being provided with two or more of said rows, the pins on each roll being arranged staggering with respect to each other and with the pins on the succeeding rolls and sockets on the other roll of each pair adapted to receive the points of said pins, said pins being adapted to engage slits in said sheet and expand the same.

24. The combination with cutting and forining rolls, of a plurality of pairs ot' expandingrolls adapted to receive a sheet of metal therefrom, said expanding-rolls being provided with interchangeable duplicate pins having inclined points said pins on each roll being more remote from the middle of the roll than the pins on the preceding roll.

25. The combination with a pair of oppositely-rotat-ingcutting-rolls located one above the other-,of oppositely-rotating forming-rolls similarly placed, and of equal size, a plurality of pairs of upper and lower coacting expanding-rolls having less diameter than thc aforesaid rolls, means for rotating said rolls with equal peripheral velocity, and means on said expanding-rolls acting to engage a cut and formed sheet of metal at the center and acting to expand the same laterally.

2G. The combination with cutting -rolls adapted to slit a sheet of metal in a plurality of relatively short overlapping parallel slits a desired distance apart, forming-rolls provided on their peripheries respectively with coacting dies and punches adapted to form said sheet into alternating V-shaped ridges and open slots or pockets, a plurality of pairs of oppositely-rotating expandingrolls located one above the other and adapted to receive said sheet from the forming-roll, and means on each pair of said expanding-rolls acting to expand said sheet laterally.

27. The combination with cutting rolls adapted to slit a sheet ot' metal in a plurality of relatively short overlapping parallel slits a desired distance apart, forming-rolls provided on their peripheries respectively with coacting dies and punches adapted to form said sheet into alternating ridges and open slots or pockets, a plurality of pairs of oppositely-rotating expanding-rolls located one above the other and adapted to receive said sheet from the forming-roll, and a row ot' peripheral pins. set staggering on said corresponding expanding-rolls said pins having their surfaces near their points adapted to engage in said slots or pockets and acting successively to expand the sheet.

28. The combination with a plurality of cutting-rolls each provided with a plurality of relatively short slitting-knives set staggering with each other and spaced a desired distance apart and adapted to slit a sheet of metal in a plurality of overlapping parallel short slits or cuts, a pair of oppositely-rotating forming-rolls provided respectively with peripheral coacting dies and punches adapted to form the slit sheet between said slits in ridges, having between the same diamondshaped slots or pockets, a plurality of pairs of expanding-rolls adapted to receive the sheet from the forming-rolls, each pair of said expanding-rolls having secured thereon one or more interchangeable peripheral rows of pins the points of which enter complemental sockets in the complement-al corresponding roll, said pins being set staggering and adapted to successively engage in said diamond-shaped pocket-s in said sheet and successively expand the sheet laterally.

29. The combination Withcutting-rollshaving removably secured thereon a plurality of relatively short slitting-knives set staggering with each other and spaced a desired distance apart and adapted to slit a sheet of metal into a plurality of short overlapping parallel slits or cuts, upper and lower forming-rolls each provided with peripheral coacting dies adjusted to form ridges between said slits, and diamond-shaped slots or pockets between said IIO ridges, a plurality of pairs of coacti n g expanding-rolls adapted to receive the sheet from said forming-rolls, the rolls of each pair being provided with on'e or more rows of peripheral angular-pointed pins arranged staggering with each other and adapted successively to engage in said slots or pockets and acting to expand the sheet laterally.

30. The combination with cutting-rolls one 4of which is provided with a plurality of removable knives arranged staggering and spaced a desired distance apart and adapted to slit a sheet of metal into a plurality of overlapping parallel short slits or cuts, an upperand a lower forming-roll provided with alternate coacting diesand punches adapted to form the sheet between said slits into oppositely-directed V-shaped ridges having between the same oppositely-lared diamondshaped slots or pockets, a plurality of pairs of upper and lower expanding-rolls said rolls having secured thereon a peripheral row of vpins alternating from the upper and lower rolls out of alinement with each other and adapted to successively engage in said diamond-shaped pockets from opposite sides of the sheet.

3l. The combination with cutting-rolls one of which is provided with a plurality of removable knives arranged staggering and spaced a desired distance apart and adapted to slit a sheet of metal into a plurality of overlapping parallel slits, an upper and a lower formingroll provided with. alternate coacting dies and punches adapted to form the sheet between said slits into oppositely-directed V-shaped ridges having between'the same oppositelytiared diamond -shaped slots or pockets, a plurality of pairs of upper and lower expanding-rolls each roll having secured thereon a peripheral row of pins alternating from the upper and lower rolls, out of alinement with' each otherand adapted to successively engage in said pockets from opposite sides ofthe sheet, said pins rst engaging said sheet in a central line and adapted to expand the same laterally.

32. The combination with a plurality of co acting cutting-rolls, of a plurality of coacting forming-rolls, each of said forming-rolls consisting of a plurality of circular plates secured axially upon Aa shaft or mandrel, each of said plates being provided alternately upon its periphery with die-s and punches adapted to forni a slit sheet into alternating V-shaped ridges and diamond-shaped pockets.

The combination with a plurality of coacting cutting-rolls, of a plurality of formingrolls adapted to receive a sheet of metal or the like therefrom, said forming-rolls each comprising a plurality of circular plates adapted to be clamped together upon an axial shaft or mandrel and provided on the periphery with alternate dies and punches, said plates when in operative position being so adjusted that said dies and punches arel arranged stag'- gering with each other and adapted to form the sheetinto alternate V-shaped ridges and diamond-shaped pockets.

34. The combination with a plurality of cutting-rolls, of a plu rality of forming-rolls, each of said forming-rolls being provided with alternate dies and punches arranged staggering with each other, said rolls being composed of interchangeable duplicate parts axially secured upon a mandrel and expanding means adapted to engage a cut sheet as it comes from said rolls and acting to successively expand the parts thereof.

35. The combination With cutting-rolls, of means for stripping the cut sheet of metal or the like therefrom, forming-rolls adapted to receive the sheet from the cutting-rolls, said forming-rolls being provided on their periphery with coacting dies and punches adapted to form said sheet into alternate V-shaped ridges and oblong pockets and rolls acting to receive the sheet from said forming-rolls and which uniformly expand the same laterally.

36. The combination with a plurality of cutting-rolls,ot` a plu rality of forming-rolls adapted to form alternate ridges and slots in a sheet received from the cutting-rolls, each of said forming-rolls being provided on the periphery with alternate dies and punches arranged staggering with each other, means adapted to engage said sheet in said'slits and acting to expand the sheet laterally.

37..Tlie combination with cutting rolls adapted to slit a sheet of metal or the like into a plurality of overlapping'parallel slits, ot forming-rolls provided with coacting surfaces acting to force the slit edges out ofthe plane of the sheet and means adapted to engage said sheet in said slits and acting to expand said sheet laterally.A

38. 'Ihe combination with cutting rolls adapted to slit a sheet of metal or the like into a plurality of overlapping parallel slits, of forming-rolls provided with coacting surfaces acting to force the slit edges out of the plane of the sheet and means adapted to engage said sheet in said slits and acting to expand the sheet laterally said means irst engaging said sheet centrally then successively engaging adjacent lateral slits until the expansion is complete.

39. The combination with cutting rolls adapted to slit a sheet of metal or the like into a plurality of short parallel overlapping slits, of forming-rolls provided with coacting dies and punches adapted to form said sheet into alternate ridges and slots or pockets and means adapted to engage said sheet in said slits and acting to expand the sheet laterally, said means' first engaging slots located centrally, then simultaneously and successively engaging adjacent slots until the expansion is complete.

slits, ot forming-rolls provided peripherallywith coacting surfaces adapted to form in IOO IlO

said sheet oppositely-directed ridges alternating with oppositely-opening slots or pockets, and means adapted to engage said sheet in said slots or pockets and acting to expand the sheet laterally.

4l. The combination with cutting rolls adapted to slit a sheet of metal into a plurality of relatively short parallel overlapping slits, of forming-rolls provided peripherally with coacting surfaces adapted to form in said sheet oppositely-directed ridges alternating with oppositely-opening slots or pockets, means adapted to engage said sheet in said slots or pockets and acting to expand the sheet laterally, said means first engaging t-he sheet centrally then simultaneously and successively engaging slots on each side of the center and guides acting to engage the expanded portion of the sheet until the expansion is complete.

42. In a machine of the class described an expanding-roll provided with guide-pins and expanding-pins arranged staggering with said guide-pins and having obliquely-inclined points.

43. In a machine of the class described the combination with cutting means and forming means, of upper and lower expanding-rolls adapted to engage between the same a slit sheet of metal, a plurality of rows of expanding-pins arranged on an expanding-roll, said expanding-pins being arranged staggering and adapted to successively engage in the slits in the sheet and acting t0 expand the sheet laterally.

44. The combination with slittingrolls and forming-rolls, of a plurality of pairs of expanding-rolls, one of each pair of expandingrolls being provided With a plurality of rows of expanding-pins having inclined points, said expanding-pins being arranged divergently 011 succeeding rolls and arranged staggering with each other.

45. In a machine of the class described the combination with cutting-rolls and formingrolls adapted to slit and to form a sheet of metal into alternating ridges and open slots or pockets, of a plurality of pairs of expanding-rolls each pair of rolls being provided with pins having inclined points arranged staggering with each other and adapted to engage said sheet successively in said slots or pockets and the complemental rolls being provided with sockets adapted to receive the points of said pins, said pins being arranged divergently on succeeding rolls.

46. In a machine of the class described the combination with cutting-rolls and formingrolls adapted to slit and form a sheet of metal into alternating ridges and open slots or pockets, of a plurality of pairs of expandingrolls each pair of rolls being provided with pins having inclined points arranged staggering with each other and adapted to engage said sheet successively in said slots or pockets, the complemental rolls being adapted to receive the points of said pins, said rows of pins being arranged divergently on succeeding rolls and means for driving said cutting forming and expanding rolls` at the same peripheral speed.

47. The combination with cutting-rolls and forming-rolls adapted to slit and form a sheet of metal into alternate ridges and open slots or pocket-s, of means carried by rolls adapted to engage said sheets in said slots or pockets and acting to expand the sheet laterally.

48. In a machine of the class described a vplurality of pairs of rolls adapted to receive between the same a sheet of metal formed in alternate staggering slots and ridges and means carried by said rolls adapted to engage said sheet successively in said slots and acting to expand the sheet laterally.

4S). In a machine of the class described a plurality of pairs of rolls adapted to receive between the same a sheet of metal or the like form ed with staggering slots or pockets, guidepins on one of each pair of rolls adapted to engage a line ot' pockets in said sheet and a plurality of rows ot' expanding-pins on each pair of rolls arranged staggering and adapted to engage said sheet alternatelyin said slots, said expanding-pins on succeeding rolls being arranged divergently.

50. An expanding-roll fora machine of the class described comprisinga cylindric roll provided peripherally with removable pins having inclined points and arranged staggering with each other.

5l. A pair of expanding-rolls for a machine of the class described comprising oppositelyrevolving rolls located out of contact and one above the other each of said rolls being provided With a plurality of peripheral rows of screw-threaded sockets, each adapted to afford engagement for a screw-threaded expanding-pin, or to receive the point of an expanding-pin secured on the other roll.

52. In a machine of the class described, the combination with cuttingrolls adapted to form in a sheet of metal a plurality of short slits, of movable expanding means adapted to engage the sheet in said slits and acting to expand the sheet laterally.

53. The combination with cutting means adapted to slitasheet of metal into a plurality of relatively short slits, of movable expanding means adapted to engage said sheet in said slits and acting to expand the sheet laterally. l

54. The combination with cutting means and forming means adapted to slit and form a sheet of metal of movable expanding means adapted to engage the sheet in said slits and acting to expand the sheet laterally.

55. In a machine ofthe class described, movable expanding means adapted to engage a slit sheet of metal in the slits and acting to expand the sheet laterally.

56. The combination with cutting rolls adapted to provide relatively short slits in af IOO slits, of movable expanding means embracing; pins adapted to engage the sheet in said slits on each side of a median line and acting at approximately a right angle with the edges of the sheet.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribng Witnesses.

GEORGE A. TURNBULL. In presence of- C. W. HILLS, LOUIS J. DELSON. 

